Back at the start of January, Nikon put professional photographers on notice -- it was time to get excited, because the company's latest flagship DSLR was in development. Now, the Nikon D4S is here -- or to be more precise, it will be here in just a week's time. And while it shares much with its immediate predecessor, the D4S has plenty of upgrades throughout that may persuade you to get your wallet out.

The changes start with a brand-new 16.2-megapixel image sensor and latest-generation EXPEED 4 image processor that together shoot both faster and at higher sensitivity. Although resolution is unchanged, the D4S is now capable of shooting at an impressive 11 frames per second, complete with autofocus and autoexposure between frames. ISO sensitivity ranges to as high as ISO 409,600 equivalent with expansion enabled, or ISO 25,600 without.

Nikon has also tweaked the ergonomics, reworked its autofocus algorithms, tweaked exposure for interval shooting and movies, and reduced the viewfinder blackout time And if you want more -- well, there's an uprated movie mode that allows 1080p50/60 capture, added support for simultaneous uncompressed HDMI output and H.264 storage to flash, a significant increase in battery life, a faster wired Ethernet connection, and a new reduced-resolution raw mode.

Want to know more about the latest Nikon professional DSLR flagship? Read our Nikon D4S preview for the full story! Just want to get in queue to buy yours? Place your preorder now at the links below: